Google put a link to Blog Search on the Google News home page, which resulted in a 168 percent increase in market share for Google Blog Search over a two-week period (week ending Oct. 14 versus week ending Oct. 28).

About 60 percent of Google Blog Search's traffic comes from Google News, up from about 1 percent before the change.

Google Blog Search has attracted a younger audience than Technorati. Only 10 percent of visitors to Technorati were in the 18 to 24 group, while 34 percent of visitors to Google Blog Search reached that tech-savvy group.

Both sites skew male, with 55 percent of Technorati visitors and 61 percent of visitors to Google Blog Search.